Valve



Patented Sept. 22, 1925;;

UNITED STATES PATENT OFFICE.

nmoN J. TBUMBLE, orv ALHAMBRA', cALIFonNrA, AssIeNon 'ro TRUMBLE GAs TRAP co., A corAa'rNnnsmr coNsIsrrNe or M ILoN J. TBUMBLE, FRANCIS M. TOWN- sEND, AND ALFRED J. eU'rzLna, or Los ANGELES, cALrronNIA.

l vALvnfv 'Application illed April 4, v1921. Serial No. 458,253.

To all whom t may (5o/noem.'

-Be it known that I, MILON J. TRUMBLE, a citiz'en of ithe United States, residing at Alhambra, county of Los Angeles, and State of California, have invented a new and useful Improvement in Valves, of which the following is a specification.

My invention relates' to valves through which fluids are ejected under considerable pressure.

The principal object of the invention is to provide a valve which will be very long lived when used for this purpose.

Further objects and advantages will be made evident hereinafter.

`Referring to the drawing which is for illustrative purposes only, u

Fig. 1 is a section through one form of my invention on a plane represented by the Fig. 2 'is an 'end viewof my invention. Fig. 3 is a section on a plane represented Aby the line 3--3 of Fig. 1. A l

Fig. 4 is a top plan view of theroto'r of the valve as it appears when removed'l from the casing. Y w

. In'the form of the invention shown a v casing 11 'is provided yhaving a cavity 13 in which a rotor 12 is placed. The ,rotor 12 consists vof a c lindrical member having a `cylindricalcavity 16 thereink and having a `rectangularopening "15 in one' side thereof communicatingwith the centralcavity, The l central cavity 16 is open at one end and is.

provided with a closing wall 17 at the other end. Centrally secured on the closing wall 17 is a stem 18 terminating in a square shank 19,'this shankbengofsuitable size to rep ceive a wrench 20. A stuiiing box 42 is p ro-7 v ided around vthe shank in the body 11 to' make a fluid tight joint therearound. An

- inlet pipe 14 is secured' in a flange'21 which is -secured by studs 22 lto the "body 11, a gasket `23 being provided between thebody .45 11 andftheiange 21.v A. packing 24 is also rovided makin atriple joint between the ody `11", the gaset23 and therotor 12.* A grease channelv 30 is provided through the stem 18 being supplied with grease by means 5 of 4a standard grease cupBl. Closed-channels 32 are provided in t e Wall 17 and holes 33 are provided for thoroughly lubrleatmg the outer surface of the wall 17 long1tud1 v nelly. 'Grooves 35 are provided 1n the outer amountl of flow by allowing onl ,v inlet pipe whic surface of the rotor 12 so that a very thorough lubricationvmay be secured about thel y entire rotor 12. An outlet cured in the body 11.

The method of operation is as follows:

pipe `40 is se- The valve has a special utility when con-l siderable pressure is relieved therethrough and when hi hly abrasive materials are carried 1n the uid. This condition is found in handling certain oil, water or steam carry-1 ing sand, mud, silt, or other abrasive par 'ticles The outlet pipe 40 communicates with the chamber 41 having a. rectangular opening somewhat smaller'tha'n the opening 15.- The rotor 12 may be turned inside the shell 1l to bring the opening y15 in re ister with the chamber 41 or to Vturn it comp etely around so that this chamber is Shut oif. It 1s possible by using this valve to regulate the a small portion of the openings 15 toregister with the chamber 41.-

When operating under these conditions yin the presence of abrasive particles, consider- Iable wear results on the edges ofthe opening ,15 but thisv wear does not destroy the eii ciency ofthe valve, it simply requires that it be turned a little further to" shut oi the flow. The edges of the opening 15 are very long'and a great deal of wear may take place thereon be ore the eiiiciency of the valve is I claim as my invention:

having a cylindrical cavityftherein and an drical opening at one' side thereof; a rotor '..ittn'g 'inside said cylindrical cavity, said rotor having a central cavity extending axially therein, and 4an opening in the Vperiphery of lsaid rotor `so placed that it may be made to register vwith the outlet opening in said shell, said shell being also provided with an axial opening communicating With'said central cavity in said rotor; a flange closing said axial opening, said flange bearinga ainst vvthe end of said rotor v and making a uid tight connection therewith, said'iian e being provided with an delivers fluid to said central cavit 'of said valve;Y and means by 1 which sai rotor may be turned in said means comprising a stem formed integral with said rotor and .extending through an end of said Ina valve, the combinationof: a shells shell and a lever secured to an end of said stem; a stuffing box encircling said stem, said stem having a lubricating passage eX- tending longitudinally therethrough; a grease cup secured to the outer end of said stem and having communication with said lubricating passage, an end wall of said rotor having radial lubricating passages thereincomrnunicating with the inner end of l said longitudinal lubricating passage in said stem, said rotor also having longitudinal lubricating passages in the periphery thereof communicatin at one .end wlth the outer ends of said radlal passages, said end wall my hand at 'Los Angeles, California, this 20 28th day of March; 1921.

' MILON J. TRUMBLE. 

